org.ehcache.jsr107.Eh107CacheLoaderWriterProvider Maven / Gradle / Ivy
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/*
* Copyright Terracotta, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.ehcache.jsr107;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import org.ehcache.spi.loaderwriter.CacheLoaderWriter;
import org.ehcache.impl.internal.spi.loaderwriter.DefaultCacheLoaderWriterProvider;
/**
* @author teck
*/
class Eh107CacheLoaderWriterProvider extends DefaultCacheLoaderWriterProvider {
private final ConcurrentMap> cacheLoaderWriters = new ConcurrentHashMap>();
public Eh107CacheLoaderWriterProvider() {
super(null);
}
@SuppressWarnings("unchecked")
@Override
public CacheLoaderWriter super K, V> createCacheLoaderWriter(String alias,
org.ehcache.config.CacheConfiguration cacheConfiguration) {
CacheLoaderWriter, ?> cacheLoaderWriter = cacheLoaderWriters.remove(alias);
if (cacheLoaderWriter == null) {
return super.createCacheLoaderWriter(alias, cacheConfiguration);
}
return (CacheLoaderWriter super K, V>)cacheLoaderWriter;
}
@Override
public void releaseCacheLoaderWriter(CacheLoaderWriter, ?> cacheLoaderWriter) {
//
}
void registerJsr107Loader(String alias, CacheLoaderWriter cacheLoaderWriter) {
CacheLoaderWriter, ?> prev = cacheLoaderWriters.putIfAbsent(alias, cacheLoaderWriter);
if (prev != null) {
throw new IllegalStateException("loader already registered for [" + alias + "]");
}
}
}